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Sparse Automotive M...
Sparse Automotive MIMO Radar for Super-Resolution Single Snapshot DOA Estimation With Mutual Coupling
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- Amani, Navid, 1985 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Technische Universiteit Eindhoven,Eindhoven University of Technology
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- Jansen, Feike (author)
- Nxp Semiconductors Netherlands Bv
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- Filippi, Alessio (author)
- Nxp Semiconductors Netherlands Bv
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- Ivashina, Marianna, 1975 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Maaskant, Rob, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Technische Universiteit Eindhoven,Eindhoven University of Technology
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(creator_code:org_t)
- 2021
- 2021
- English.
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In: IEEE Access. - 2169-3536 .- 2169-3536. ; 9, s. 146822-146829
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https://research.cha... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A novel sparse automotive multiple-input multiple-output (MIMO) radar configuration is proposed for low-complexity super-resolution single snapshot direction-of-arrival (DOA) estimation. The physical antenna effects are incorporated in the signal model via open-circuited embedded-element patterns (EEPs) and coupling matrices. The transmit (TX) and receive (RX) array are each divided into two uniform sparse sub-arrays with different inter-element spacings to generate two MIMO sets. Since the corresponding virtual arrays (VAs) of both MIMO sets are uniform, the well-known spatial smoothing (SS) algorithm is applied to suppress the temporal correlation among sources. Afterwards, the co-prime array principle between two spatially smoothed VAs is deployed to avoid DOA ambiguities. A performance comparison between the sparse and conventional MIMO radars with the same number of TX and RX channels confirms a spatial resolution enhancement. Meanwhile, the DOA estimation error due to the mutual coupling (MC) is less pronounced in the proposed sparse architecture since antennas in both TX and RX arrays are spaced larger than half wavelength apart.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Keyword
- Radar
- Estimation
- MIMO radar
- MIMO radar
- MIMO communication
- Direction-of-arrival estimation
- mutual coupling
- sparse arrays
- Antenna arrays
- single snapshot
- Automotive radar
- DOA estimation
- Sparse matrices
Publication and Content Type
- art (subject category)
- ref (subject category)
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